Roof flashing and pipe joint



June 6, 1950 D. M. GOLDSTEIN 2,510,926

ROOF FLASHING AND PIPE JOINT Filed July 1, 1946 -"r:- r-"----" i4 17, 17 17 if Iflveni'or a 7 4 awormzy Patented June 6, 1950 ROOF FLASHING AND PIPE JOINT David M. Goldstein, Boston, Mass, assignor to New England Stamping Works, Inc., Boston, Mass, a corporation of Massachusetts Application July 1, 1946, Serial No. 680,758

1 Claim.

My present invention is a novel and improved roof flashing and joint construction to encircle a pipe passing thru the roof and make the same water-tight.

Various prior flashing and roof joint constructions have been used, the usual type being where a collar surrounded the pipe or stack passing thru the roof and provided a space for caulking or packing between the exterior of the pipe and the interior of the collar.

Various other devices have been used for this purpose, such as adjustable collars being drawn together by a pair of bolts or set screws, ring clamps passing around malleable sections, as well as malleable material fitted directly on to and around the material of the flashing.

In my present improved construction I provide a flange of suitable material for the flashing adapted to fit underneath the shingles, roof covering, slate, or the like, with an extension in a frusto-conical form extending slightly upward from the base or sheet of the flange or flashing material and at an angle thereto, since most roofs are at an angle; and thereupon I apply a fixed metal collar, which may be adjustably fitted on the top of the frusto-conical portion of the flange material, giving a considerable range for adjustment of the angle and providing a rigid metallic collar as a protecting holder for the top of the frusto-conical portion.

Also I apply on top of this rigid collar a ring of lead, or the like malleable composition, which may be readily hammered, pressed, or forced into smooth and intimate contact with the outside rim of the pipe or stack around which the flange and collar are fitted to make the same waterproof.

Referring to the drawings illustrating a preferred embodiment:

Fig. l is a side view in cross-section showing my present invention;

Fig. 2 is a plan view, and

Fig. 3 is a cross-sectional view on the line 3-3 01' Fi 2.

Referring to the drawings, I have illustrated a typical slanting roof at l thru which an opening from approximately the positions as shown from 2 to 3, Fig. l, is formed to receive a stack or pipe indicated in dotted lines at 5. I apply about this opening my flange, preferably of non-corrosive material, such as copper, zinc, or the like, having a base rim '8 to fit upon the roof I, and extending upwardly from this base rim 8 is a frusto-conical portion of the same or similar non-corrosive material 9.

This portion 9 is cut off, as shown at I 0, leav- 2 ing an openin therethru substantially large than the exterior diameter of the stack or pip 5 to which the roof flange is to be fitted. Adapted to fit around the top of the frusto-conical portion 9 and with a greater interior diameter than that of the portion 9 where it is cut ofi at IE], I provide a rigid metal ring l2, preferably of iron, having its bottom portion tapered slightly to enable the same to have a capacity for slanting or tilting adjustment about the top of th frustoconical portion 9 to allow for slight angular adjustment, where desired.

The top of the ring i2 is formed with :a groove and flange construction, as indicated at M, and applied to the same is a collar l5 of lead or malleable material, having its base portion adapted to fit over the grooved flange M and, hence, to be secured therein, with a portion of the collar [5 extending over the outside or ring I2, as indicated at 16, Figs. 1 and 3, and with the top or upper portion of the collar it formed as a relatively thin rim l8. This rim k8 is of sufficient extent to permit the same to be hammered over into contact with the pipe or stack 5, as indicated at 20, Fig. 3, thus allowing for a considerable range in diameter of the pipe 5 and collar l5 and providing a water-tight rainproof joint between the outside of the pipe 5 and the rest of the flange structure, as will be readily appreciated.

I also provide a plurality of internal, downwardly extending clips l'I-ll on the lower portion of the collar [5 to still further secure the same about the curved flange at the top of the ring l2.

My arrangement of a separate ring l2 fitting about the top of the frusto-conical portion 9 and, preferably, with slightly tapered side walls, as shown in Figs. 1 and 3, is important since this provides a protecting rigid collar around the frusto-conical portion of the roof flange and also a firm base from which to hammer or press the rim is into contact with the stack 5. Furthermore, diflerent diameters of the rings l2 and attached collars l5 can be applied to the same frusto-conical portion 9 to fit stacks 5 of varying diameter and, thus, I can provide a single standard roof flange portion with varying separate rings and collars, greatly simplifying and expediting the work of fitting and adjusting on the job, as well as rendering the manufacturing more economical.

My improved construction thus provides a solid, rigid ring between the frusto-conical portion 9 of the roof flange and the malleable collar l5, providing also for angular adjustment for varying angles of the pipe 5 relatively with the frusto-conical portion 9, and yet provide at all times for positioning the collar l5 substantially concentric with the pipe 5 to allow for the even hammering in of the malleable rim 18 against the pipe 5, as well also to provide for various diameters of pipes suitable for use with the same roof flange and flashing. It will also be appreciated that the malleable rim I5 is interlocked by a dovetailed connection directly on the shouldered top rim of the ring I2, the groove and flange construction with the clips I! effecting a firm joint so that the ring l2 and'malleable rim l5 can be assembled and shipped as a unit.

I claim:

A roof flashing and pipe joint construction of the kind described comprising a combined flashing and frusto-conical portion, and a combined cylindrical metal ring and malleable top rim, said flashing and frusto-conical parts being welded together, and said ring and malleable top rim being dovetailed and interlocked together as a unit, the ring being of cylindrical form and of greater inner diameter than the exterior of the upper portion of said frusto-conical part, said ring engaging the frusto-conical part on a line contact afiording a relative tilting adjustment between said ring and said frusto-conical part, said ring having a rib and groove on its upper surface, and said malleable rim being interlocked by a plurality of depending clips on the inside, and by a continuous part on the outside of said rib and groove, said malleable r-im having an upwardly extending flange of substantial length adapted to be pressed laterally into contact with the exterior of a pipe projecting therethru in a nonconcentric angular relation.

DAVID M. GOLDSTEIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 885,318 Bullard Apr. 21, 1908 1,318,219 Goodman Aug. 11, 1 931 

